Kramer VP-27 User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VP-27
Presentation Switcher

Contents
i
Contents
1Introduction 1
2Getting Started 1
2.1 Quick Start 1
3Overview 3
4Your VP-27 Presentation Switcher 3
5Installing the VP-27 in a Rack 7
6Connecting the VP-27 Presentation Switcher 8
6.1 Connecting a PC 10
6.2 DIP-switch Settings 10
7Operating the VP-27 Presentation Switcher 11
7.1 Locking the Front Panel 12
7.2 Resetting the VP-27 Presentation Switcher 12
8Firmware Upgrade 12
8.1 Downloading from the Internet 12
8.2 Connecting the PC to the RS-232 Port 13
8.3 Upgrading Firmware 13
9Technical Specifications 15
10 Communication Parameters 16
11 Hex Table (Protocol 2000) 17
11.1 The Switching Control Hex Table 17
11.2 Audio Gain Control Hex Tables 17
12 ASCII Table (Protocol 3000) 18
12.1 The Switching Control ASCII Table 18
12.2 The Audio Gain Control ASCII Tables 19
13 Kramer Protocol 19
13.1 Protocol Output Definitions 19
13.2 Switching Protocols 19
13.2.1 Switching Protocols via the Front Panel Buttons 20
13.2.2 Switching Protocols via Protocol Commands 20
13.3 Kramer Protocol 3000 20
13.3.1 Protocol 3000 Syntax 20
13.3.2 Command Parts Details 21
13.4 Kramer Protocol 2000 25

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
ii
Figures
Figure 1: VP-27 Presentation Switcher 4
Figure 2: Connecting the VP-27 9
Figure 3: Connecting to a PC 10
Figure 4: VP-27 Dipswitches 10
Figure 5: FlashLoader Window 13
Figure 6: Flash Upgrade Process 14
Tables
Table 1: Front Panel VP-27 Presentation Switcher Features 5
Table 2: Rear Panel VP-27 Presentation Switcher Features 6
Table 3: Dipswitch Settings (Default Setting) 10
Table 4: Technical Specifications of the VP-27 Presentation Switcher 15
Table 5: Communication Parameters 16
Table 6: VP-27 Hex Table Video and Audio In-group Selector 17
Table 7: Set the Audio Gain Control for the Groups 17
Table 8: Set the Audio Output Gain Control for the Microphone 17
Table 9: Set the Audio Output Gain Control for the Master Audio 18
Table 10: Increase or Decrease the Audio Output Gain by One Step 18
Table 11: VP-27 ASCII Table Video and Audio In-group Selector 18
Table 12: Set the Audio Gain Control for the Groups 19
Table 13: Set the Audio Output Gain Control for the Microphone 19
Table 14: Set the Audio Output Gain Control for the Master Audio 19
Table 15: Instruction Codes for Protocol 3000 22
Table 16: Protocol Definitions 25
Table 17: Instruction Codes for Protocol 2000 26

Introduction
1
1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range
of problems that confront the video, audio, presentation, and broadcasting
professional on a daily basis. In recent years, we have redesigned and upgraded
most of our line, making the best even better! Our 1,000-plus different models
now appear in 11 groups1
Congratulations on purchasing your Kramer VP-27 Presentation Switcher.
This product is ideal for the following typical applications:
that are clearly defined by function.
•Presentation and conference room systems
•Production studios, as well as rental and staging
The package includes the following items:
•VP-27 Presentation Switcher
•Windows®-based Kramer control software2
•Power cord
3
•Infrared remote control transmitter (including the required batteries and a
separate user manual
and Rack “ears”
4 4
) and this user manual
2 Getting Started
We recommend that you:
•Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
•Review the contents of this user manual
•Use Kramer high performance high resolution cables5
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems; GROUP 4:
Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity; GROUP 10: Accessories
and Rack Adapters; GROUP 11: Sierra Products
2 Download the latest software from our Web site at http://www.kramerelectronics.com
3 We recommend that you use only the power cord that is supplied with this machine
4 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
5 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2

Overview
3
3
3 Overview
The VP-27 is a high quality presentation switcher designed for a wide variety
of presentation and multimedia applications. The VP-27 combines the
functions of a 4x1 switcher for composite video and audio, a 4x1 switcher for
s-Video and audio, and a 4x1 switcher for computer graphics video (PC/VGA)
type signals with audio.
The VP-27 is a one-box high-performance solution for installations that would
otherwise require several separate products, and is designed so that each
section is controllable independently from the other sections.
The VP-27 features:
•An additional audio switching section that routes one of the pre-selected
audio inputs from the other switching sections to a separate output
•24 selector switches and front panel control adjustment for master audio
output level and microphone level, mix, mute, and talk over
•The ability to insert a microphone channel by switching, mixing, or talk-
over
•A LOCK button to prevent tampering with the front panel
Control the VP-27 via the front panel buttons or IR remote control using the
Kramer infrared remote control transmitter (provided) or by RS-232 serial
commands transmitted by a touch screen system, PC, or other serial controller.
To achieve the best performance:
•Connect only good quality connection cables, thus avoiding interference,
deterioration in signal quality due to poor matching, and elevated noise
levels (often associated with low quality cables)
•Avoid interference from neighboring electrical appliances that may
adversely influence signal quality and position your Kramer VP-27 away
from moisture, excessive sunlight and dust
4 Your VP-27 Presentation Switcher
Figure 1, Table 1and Table 2define the VP-27.

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-27 Presentation Switcher
4
Figure 1: VP-27 Presentation Switcher

Your VP-27 Presentation Switcher
5
5
Table 1: Front Panel VP-27 Presentation Switcher Features
#
Feature
Function
1 IR Receiver Signals from the remote control transmitter illuminate the LED
2 POWER LED Lights when the unit is turned ON
3 INPUT
SELECTOR
Buttons
VIDEO (CV) Select the composite video / audio input (from 1 to 4)
4 s-VIDEO (Y/C) Select the s-Video / audio input (from 1 to 4)
5 PC Select the computer graphics video / audio input (from 1 to 4)
6 MASTER AUDIO
SELECTOR Buttons Y/C Press to route the selected audio signal from the s-Video section to the master audio outputs
7 CV Press to route the selected audio signal from the composite video
section to the master audio outputs
8 PC Press to route the selected audio signal from the computer graphics
video section to the master audio outputs
9 MIC Press to route the microphone input to the master audio outputs
10 VOLUME
Buttons
MASTER - Decrease the master audio signal level
11 + Increase the master audio signal level
12 MIC + Increase the microphone audio signal level
13 - Decrease the microphone audio signal level
14 MUTE Button Press to disable/enable the Master Audio output
15 TALK OVER Button Press to toggle. When on will activate talk over function1
16 MIX Button Press to toggle. When on, will mix the microphone signal with the
Master Audio output
17 LOCK Button Press and hold to lock/unlock the front panel buttons
1 With the TALK OVER button pressed in, speaking into the microphone amplifies the voice of the speaker, overriding and
fading out all other audio channels. However, pressing the MIC button in the Master Audio Selector renders the Talk Over
function inactive

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-27 Presentation Switcher
6
Table 2: Rear Panel VP-27 Presentation Switcher Features
#
Feature
Function
18 Video
Connectors Y/C IN 4-pin Connect to the s-Video sources
2
19 CV IN RCA Connect to the composite video sources2
20 Y/C OUT 4-pin Connect to the s-Video acceptor
21 CV OUT RCA Connect to the composite video acceptor
22 PC IN 15-pin HD Connectors Connect to the VGA/UXGA video sources
2
23 PC OUT 15-pin HD Connector Connect to the VGA/UXGA video acceptor
24 DIP-switches DIP-switches for setup of the unit (DIP 1 and 4 are not used; DIP
2 PROG16.2, DIP 3 MIC DC; see Section )
25 RS-232 (Tx, Rx, G) Terminal
Block Connector Connects to the PC or the Remote Controller
26 PC AUDIO IN 3.5mm Mini Plugs Connect to the s-Video unbalanced audio sources2
27 PC AUDIO OUT 3.5mm Mini
Plug Connect to the PC unbalanced stereo audio acceptor (for the PC video)
28 MIC 6.3mm Phone Jack Connector Connect to the microphone
29 CV AUDIO IN RCA Connectors Connect to the unbalanced audio sources2
30
of the composite
video
CV AUDIO OUT RCA
Connectors (L and R) Connect to the composite video unbalanced audio acceptor (for the composite video)
31 Y/C AUDIO IN RCA Connectors Connect to the s-Video unbalanced audio sources
2
32 Y/C AUDIO RCA Connectors (L
and R) Connects to the s-Video unbalanced audio acceptor (for the s-Video)
33 MASTER OUT RCA Connectors
(L and R) Connect the master unbalanced audio channel acceptor
34 Power Connector with Fuse AC connector enabling power supply to the unit
35 POWER Switch Illuminated switch for turning the unit ON or OFF
1 Always set to OFF (for factory use)
2 From 1 to 4

Installing the VP-27 in a Rack
7
7
5 Installing the VP-27 in a Rack
This section describes what to do before installing in a rack and how to rack
mount.
Before Installing in a Rack How to Rack Mount
Before installing in a rack, be sure that the environment is
within the recommended range: To rack-mount a machine:
1. Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the
machine (3 on each side), and
replace those screws through the
ear brackets.
2. Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided)
through each of the four holes in the
rack ears.
Note that:
•In some models, the front panel
may feature built-in rack ears
•Detachable rack ears can be
removed for desktop use
•Always mount the machine in the
rack before you attach any cables
or connect the machine to the
power
•If you are using a Kramer rack
adapter kit (for a machine that is not
19"), see the Rack Adapters user
manual for installation instructions
(you can download it at:
http://www.kramerelectronics.com)
Operating temperature range +5° to +45° C (41° to 113° F)
Operating humidity range 10 to 90% RHL, non-condensing
Storage temperature range -20° to +70° C (-4° to 158° F)
Storage humidity range 5 to 95% RHL, non-condensing
!
CAUTION
!!
When installing in a 19" rack, avoid hazards by taking
care that:
1. It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
2. Once rack mounted, enough air will still flow around
the machine.
3. The machine is placed straight in the correct
horizontal position.
4. You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the
product label.
5. The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention to situations where
electricity is supplied indirectly (when the power cord
is not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip, and that you use only the power cord that is
supplied with the machine.